Collapsible-cable lock.



E. C. HAVILAND.

COLLAPSIBLE CABLE LOCK.

APPLICATION .FILED AuG.27,v 1'913.

1,185,313. Patented May 30,1916.

3 SHEETS-SHEET 2.

E. C. HAVLAND.

COLLAPSIBLE CABLE LOCK.

APPLICATION FILED AUG.2I, I9I3.

Patented May 30, 1916.

3 SHEETS-SHEET 3- v LEL- sr s orme.'

EDWARD C. HAVILAND, 0F CHAPPAQUA, NEW YORK, ASSIGNOR TO VAN-KANNEL' REVOLVING- DOOR COMPANY, OF YORKLN. Y., A CORPORATION OF NEW JERSEY.

COLLAPSIBLE-CABLE LOCK.

, Specification of Letters Patent.

Patented May 3(4), 1916.

Application led August 27, 1913. Serial No. 786,988.

To all whom t may 'concern Be it known that I, EDWARD C. HAVILAND, a citizen of the United States, residing at Chappaqua, in the county of Westchester and State of New York, have invented'cen' tain new and useful Improvements in Collapsible-Cable Locks, of which the following is a specification.

This invention relates to improvements in revolving doors, and more particularly to a device for detachably holding the cables connecting the wings of that type of revolving door known as the automatic collapsible revolving door, or the typeI shown and described in Patent Number 836,843, granted to Theophilus Van Kannel and dated November 27, 1906, wherein the wings are so held apart that the whole structuremay be revolved in ordinary use,'but"in which the wings may be automaticallyfoldedj'or collapsed in case of panic.l orrwhere it is desired to fold the wings in thefcenter of thecasewhen the ordinary operating pressure is applied to the wings, that is to say, the wings may have a slight yielding movement short of that required to disengage the lockmg devices as would be .desired in an emergency or in intentional folding or collapsing the wings and another object is to provide a vmeans having the further function of teny n guided with relation to the central pivot sioning or keeping taut the cables between the 'wings and a still further object is to so construct such device that after the movable parts of the device have moved a predetermined distance, the detachable end of the cable will be automatically released.

As I have stated, the invention about to be describedis adapted` to form a part of a door structure as shown in the Van Kanne] patent above referred to, and just so much of such door construction as 1s necessary to show the general arrangement of wings and their folding possibilities will be shown herein as is necessary to give an intelligent idea of the present device, but since the invention resides particularly in the releasing porting disk, with the doors collapsed and folded to one side thereof, only a portion of the wings being shown; Fig. 4 is a broken horizontal section of one of the wings, taken through one of the locking devices, it being understood that there are a plurality of such wings identical in construction; Fig. 5 is a plan view withy one of the plates removed; Fig. 6 is a plan view of the plate which receives the detachable end of the cable; and Fig. 7 is a view of the opposite plate which receives and holds the permanent end of the cable. v

' Referring to the drawings, the numeral 1 designates the door wings which, when in normal position occupy positions at right angles relative to a central spindle 2, which spindle is suitably supported at the top and bottom of the easement, and with which the wings revolve. Rigidly secured to the spindle 2, near the upper end thereof is a sup? porting vdisk 3 having a channel 4 therein. This disk is duplicated near the bottom of the door structure. Keyed to the spindle,

near-the upper and lower ends thereof are pinions 5 whose teeth mesh with toothed segments 6 carried by the several wings of the door. spring pressed stud 8 which runs into channels of the disks, whereby the wings are when the wings are collapsed or folded, or

brought to the position shown in Fig. 3, the

Each wing is provided with a structed for the reception of the permanent end of the cable. Such a plate is secured to one side of each of the wings, and is provided' with a slot 11 having a narrowed central portion 12 and two end enlargements 13 and 14, the enlargement 13 being adapted to receive the head 15 of the permanent end of the eablein attaching the cable to the it is passed through the central contracted portion and finally in the enlargement 14, this enlargement of the slot being of sucn diameter as to prevent the head from pulling through. l

The numeral 16 designates the opposite plate such a plate being attached toeach wing opposite the plate just described. This plate 16 is provided with an elongated slot 17 forthe reception of the head or knob-18 of the detachable end of the cable 19 and for the further reception of the projection 20 of the gripper 21, which is pivoted upon a fulcrum pin 22 between the side flanges 23 of a sliding frame 24. The frame 24 is provided with a cross piece 25 whichcarries a threaded stem 26 upon which works an adjusting nut 27 whose inner face is engaged by the inner end of a spiral spring 28 which surrounds the stem as shown, and the other end of this spring abuts against a crosspiece 29 integral with the plate 16, through which piece 29 extends a screw-threaded rod 30, which carries an adjusting nut 31. The j outer end of the threaded rod enters a head 32 which abuts against the inner edge ofl the cut-out or recess in the wing in which the plates are received. The opposite end of the plate 16 is provided with a cross-piece 33 through which passes one end of a screwthreaded rod 34, whichrod like the rod 30, carries an adjusting nut 35, and whose outer end is held in a head 36 which abuts against the inner edge of the cut-out or recess in the wing opposite the head 32, by which means, the whole device is clamped and adjusted in the recess in the wing.

Reverting to the gripper 21, the numeral 37 designates a spring which is coiled around the fulcrum pin 22 with one end in engagement with the gripper 21, and the other end resting upon the top of the crosspiece 25, so that a constant tendency is exerted to keepv the gripper in the position shown in full lines in Fig. 4. The gripper carries a roller 38 which is adapted to engage the head 18 on the detachable end of the cable 19 and forces it against the abutment 39 formed on the wall of the sliding frame 24. This abutment is received in the slot 17 in the plate 16 andrmoves with the frame. The outer end of the sliding frame is provided with an antifriction roller 40 which works against the inner face of the plate 16, thus reducing the friction of the moving parts and lessening the wear. Secured between the flanges 23 of the sliding frame is an angle iron 41, which `projects inwardly in the pathv of movement of the head or knob 17 of the detachable end of the cable, to limit the movement of-the knob or head in inserting it through the recess 17 and between the rollers 38 and abutment 39. Under ordinary conditions, when the door is adjusted in operative position, that is to say, when the wings are braced apart and during the operation of the door under these conditions, when force is applied to any one of the wings such as would be applied in operating the door, the wing will give slightly in response to this pressure, but not sutiiciently to release the knob, the movement of the sliding frame in such a case being slight, but in the event of a panic, when excessive force is applied to one or more of the wings,` or when a force is applied to two or .more of the wings, when it is desired to collapse them for folding purposes, the frame will be forced toward the central spindle of the door until the projection 2O of the gripper 21 engages the end of the slot 42 of the plate 16, when the gripper will be tripped or rocked upon its fulcrum pin 22, forcing the roller 38 out of engagement with the knob 18, thus releasing the cable after which the wings may be folded, it being obviously necessary only Vto detach the end of one of the cables,.when the others, being flexible,

will be merely doubled up between the v wings.

When it is desired to release the ties manually to fold the wings either for the purpose of making them extend to any one direction in the middle of the easement or door, or to fold them for the purpose of sliding the whole revolving structure to one side of the Casement as is'possible in doors of this type now commonly in use, obviously it will only be necessary to force the pivoted gripper 20 by hand against spring 37 from the position shown in Fig. 4, when the knob on the tie will be released from between the roller 38 and the abutment 39, and obviously to reinsert the knob or head ofthe tie for restablishing the radial position of -the wings, it will only be necessary to force ing one of its ends detachably-connected to one face of each wing, a slidable gripper and a slidable abutment for detachablyholding said end, and means for tripping the gripper to release the detachable end of the tie, when abnormal pressure is applied to the wing.

2. 1n a revolving-door, a central spindle, a series of folding wings mounted upon the spindle, a tie having one end permanently secured to the face of one wing, a locking deviceicarried by the -adjacent Wing for Adeand means for tripping the gripper to release the detachable end of the tie.

3. A revolving-door having in combina'- tion, a number of foldable Wings mounted on a spindle, ties connecting the adjacent faces of the Wings,'one end of each tie being permanently attached to one face of each Wing -and the other end detachably-connected to the opposite face of' the adjacent Wing, a spring-pressed, slidable frame carrying a pivoted gripper and an abutment for holding the detachable end, and means for tripping the gripper to release said detachable end of the tie. Y

4. In a Vrevolving door, in combination, a number of foldable Wings, ties connecting the Wings, slidable fixtures carried bythe wings 'and carrying a gripper and an abutment for holding one end of the, tie, and

means for engaging the gripper when the fixture has reached in its sliding movement, a predetermined point,` to trip the gripper and release the tie.

5. In a revolving door in combination, a

. plurality of foldable wings, ties connecting theadjacentpsides of the wings, a springbacked slidable fixture' carried by each wingfand carrying a spring-pressed gripper and an abutment, adapted to grasp one end of the tie and hold the samein the nor- `mal rotary movement of the door, and

means for tripping the gripper when the.

slidable fixture has reached a predetermined point, to release the tie, substantially as and for the purpose set forth.

In testimonyl whereof `I affix my signature in presence of two Witnesses.

TrrIAN W. JOHNsoN, LOmsB. WILLIAMS. 

